etteoh
100+ Head-Fier
- Joined
- Dec 12, 2007
- Posts
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I don't think power issues are affecting the D1. The power delivery is pretty stable at my place...I never had any issues with it with my other audio gears. I tried using some RCA caps on the other RCA input / output sockets at the back, which is supposed to help a bit with interference (or so I was told by a friend who swears by them - he has a Pass Labs - Wilson Audio combo by the way) but no luck. The distortion part when no opamp on the DAC section is present is indeed mind boggling...
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No luck and still looking for the root cause of the problem...it is only problem-free (so far) with the LM4562. I have a few other variants coming today and hopefully we can get a better insight as to how the D1 does with them. The draining issue on the DAC sounds serious. Damn! I hope there's nothing frigging wrong with mine. The DAC is after all the heart and soul of the D1.
And yes, the imbalance always occur at the same volume level / position.
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Wish you could disable all outputs you are not using, or implement some kind of switch on the front. I doubt it has any burden on SQ though~
I was thinking power issues as well but the variance shouldn't to such levels as to effect the entire system. Fact that it distorts with no opamp is puzzling as well.
No luck and still looking for the root cause of the problem...it is only problem-free (so far) with the LM4562. I have a few other variants coming today and hopefully we can get a better insight as to how the D1 does with them. The draining issue on the DAC sounds serious. Damn! I hope there's nothing frigging wrong with mine. The DAC is after all the heart and soul of the D1.
And yes, the imbalance always occur at the same volume level / position.
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Any succes on finding the cause yet?
If not, have you checked what happens when you remove the tube?
The only reason I can think of channel imbalance is a situation where the output of the DAC is drained to such a level that it can't produce the normal output anymore. Since its output is split over the three channels (headphone, normal out, tube out) a change in either one of them could cause a change in the channel you are listening to.
And another relevant question: is the imbalance always around the same position of the Volume control?